The Extraction Of Metals Notes

This is a sample of our (approximately) 3 page long The Extraction Of Metals notes, which we sell as part of the Chemistry AS Notes collection, a A package written at Manchester High School For Girls Sixth Form in 2013 that contains (approximately) 54 pages of notes across 17 different documents.

The Extraction Of Metals Revision

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Unit 2: 13 The Extraction of Metals

THE EXTRACTION OF METALS The occurrence of metals in the Earth's crust:

• Metals are found in the Earth's crust, the least reactive as their elements and the more reactive as metals oxides and sulﬁdes.

• Rocks that contain a high enough percentage of metal to be extracted commercially are ores.

• Aluminium and iron are the most abundant metals in the Earth crust.

METHODS OF EXTRACTION

Most compounds are found as OXIDES OR SULFIDES. Sulﬁdes are converted to oxides by ROASTING IN AIR